I just want to add that apart from our reproductive organs, there are thousands of biological differences between male and female humans. You could take a male and a female human and remove the reproductive organs of both of them, and they would still be dissimilar in thousands of biological ways.

It's interesting that in late old age, when male and female humans are long past reproducing and their hormone profiles become similar, some differences between the sexes actually become larger. For example, whilst males have a higher risk of dying of COVID-19 than females in all age groups, the risk goes up the more elderly one is. In persons age 85 and up, males with the virus are 3.17 times more likely to die of it than females of the same age and with similar underlying health conditions.